Searching saturation in eA processes

The high density effects should be manifest at small x and/or large nuclei. In this Letter we consider the behavior of nuclear structure function F-2( A) slope in the kinematic region which could be explored in the future eA c olliders as a search of these effects. We verify that the high density impl ies that the maximum value of the slope occurs at large values of the photo n virtuality, i.e., in a perturbative regime, and is dependent of the numbe r of nucleons A and energy. Our conclusion is that the measurement of this observable will allow to explicit the saturation. (C) 2000 Elsevier Science B.V. All rights reserved.